Alter Player Asynchronously

[kolakz]

I keep getting the following error in console when using /lay

[18:36:12 FATAL]: Thread Craft Scheduler Thread - 423 - GSit failed thread check for reason: Asynchronous player tracker clear
java.lang.Throwable: null
at org.spigotmc.AsyncCatcher.catchOp(AsyncCatcher.java:15) ~[patched_1.16.5.jar:git-Purpur-1150]
at net.minecraft.server.v1_16_R3.PlayerChunkMap$EntityTracker.clear(PlayerChunkMap.java:2541) ~[patched_1.16.5.jar:git-Purpur-1150]
at org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer.unregisterPlayer(CraftPlayer.java:1351) ~[patched_1.16.5.jar:git-Purpur-1150]
at org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer.hidePlayer0(CraftPlayer.java:1344) ~[patched_1.16.5.jar:git-Purpur-1150]
at org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer.hidePlayer(CraftPlayer.java:1322) ~[patched_1.16.5.jar:git-Purpur-1150]
at me.gsit.objects.PosePlayer.lambda$5(PosePlayer.java:265) ~[?:?]
at java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1694) ~[?:?]
at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762) ~[?:?]
at me.gsit.objects.PosePlayer.setPlayerVisibility(PosePlayer.java:265) ~[?:?]
at me.gsit.objects.PosePlayer.access$17(PosePlayer.java:257) ~[?:?]
at me.gsit.objects.PosePlayer$2.run(PosePlayer.java:370) ~[?:?]
at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftTask.run(CraftTask.java:100) ~[patched_1.16.5.jar:git-Purpur-1150]
at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:58) ~[patched_1.16.5.jar:git-Purpur-1150]
at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22) ~[patched_1.16.5.jar:git-Purpur-1150]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) [?:?]
at java.lang.Thread.run(Thread.java:831) [?:?]
[18:36:12 WARN]: java.lang.IllegalStateException: Asynchronous player tracker clear!
[18:36:12 WARN]: at org.spigotmc.AsyncCatcher.catchOp(AsyncCatcher.java:16)
[18:36:12 WARN]: at net.minecraft.server.v1_16_R3.PlayerChunkMap$EntityTracker.clear(PlayerChunkMap.java:2541)
[18:36:12 WARN]: at org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer.unregisterPlayer(CraftPlayer.java:1351)
[18:36:12 WARN]: at org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer.hidePlayer0(CraftPlayer.java:1344)
[18:36:12 WARN]: at org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer.hidePlayer(CraftPlayer.java:1322)
[18:36:12 WARN]: at me.gsit.objects.PosePlayer.lambda$5(PosePlayer.java:265)
[18:36:12 WARN]: at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1694)
[18:36:12 WARN]: at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762)
[18:36:12 WARN]: at me.gsit.objects.PosePlayer.setPlayerVisibility(PosePlayer.java:265)
[18:36:12 WARN]: at me.gsit.objects.PosePlayer.access$17(PosePlayer.java:257)
[18:36:12 WARN]: at me.gsit.objects.PosePlayer$2.run(PosePlayer.java:370)
[18:36:12 WARN]: at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftTask.run(CraftTask.java:100)
[18:36:12 WARN]: at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:58)
[18:36:12 WARN]: at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22)
[18:36:12 WARN]: at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
[18:36:12 WARN]: at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630)
[18:36:12 WARN]: at java.base/java.lang.Thread.run(Thread.java:831)